Hi,

I'm from Bangladesh and my router model is Archer AX15(BD). The Wifi 6 or 5Ghz band works perfectly, but whenever I connect to Wifi 4 or 2.4Ghz Network, it works for a while and then shows No internet. If I restart my router, it works again. I tried tweaking all the settings(resetting, changing channel, channel width), but it always happens. I also did not find any firmware version for my specific router model in Tp-link support page. Please Help!